286 results about "Industrial fan" patented technology

The invention relates to the technical field of welding, in particular to an industrial fan impeller welding jig which comprises a base and a working plate, the working plate is fixedly connected to the top of the base, and the working plate is a circular plate with an opening in the center; the rotating ring is rotationally installed on the outer edge of the top face of the working plate, and a plurality of first electric sliding rails are fixedly arranged on the top face of the rotating ring in the circumferential direction at intervals; the inner ring plate is rotationally assembled at the central opening of the rotating ring, and second electric sliding rails with the same number as the first electric sliding rails are fixedly arranged on the top surface of the inner ring plate in the circumferential direction at intervals; the positioning clamping pieces are arranged on the first electric sliding rails and the second electric sliding rails. Through mutual cooperation of the positioning clamping pieces on the first electric sliding rail and the second electric sliding rail, each blade can be accurately positioned and clamped, fine adjustment is carried out through the air cylinder and the two-way lead screw driven by the first motor, and therefore the welding accuracy of the blades on the chassis is effectively improved.

The invention belongs to the field of intelligent manufacturing and engineering design, and particularly relates to an industrial fan structure optimization design method and system based on AI assistance. According to the method, structural components of an industrial fan are modeled into a multi-node topological structure, a dual-channel performance prediction model is constructed, and the mapping relation between the structure and the performance is accurately established. On the basis, a comprehensive objective function is constructed, a boundary penalty mechanism is introduced, a virtual input parameter space is constructed in combination with a structure disturbance sample, a strategy gradient optimization method is adopted to carry out structure search and iterative optimization, and finally a structure scheme meeting boundary conditions and optimal performance is screened out through simulation verification. The system module comprises structure modeling, model training, objective function construction, disturbance generation, optimization execution, simulation verification and result output, and has the advantages of high structure identification precision, high optimization efficiency, strong engineering adaptability and the like.

An industrial structure for wind energy harvesting includes an industrial housing requiring venting and a vent outlet, An industrial fan associated with the vent outlet evacuates exhaust, forming an exhaust flow zone opposite the vent outlet. The exhaust flow zone is defined by first and second boundaries extending from the industrial structure on first and second sides of the vent outlet. At least one wind turbine is positioned external to the vent outlet including a turbine blade portion and an electric generator. The at least one wind turbine is positioned with respect to the vent outlet such that during each rotational cycle, the blade portion is partially within the exhaust flow zone and partially outside the exhaust flow zone straddling the first boundary.

The invention discloses a ceiling fan capable of adjusting the angle of fan blades, and relates to the technical field of industrial fans, the ceiling fan comprises a mounting top plate, a driving motor, a base, a rotating seat and a plurality of fan blades, the driving motor is arranged below the mounting top plate, and the output end of the driving motor is fixedly connected with a driving shaft; one end of the driving shaft penetrates through the rotating seat and then is fixedly connected with the base, the rotating seat is fixedly arranged at the upper end of the base, the fan blades are connected with the base through connecting pieces, the fan further comprises a height adjusting mechanism and an angle adjusting mechanism, the height adjusting mechanism is arranged between the mounting top plate and the driving motor, and the angle adjusting mechanism is arranged on the rotating seat. The angle adjusting mechanism is arranged on the inner side and the outer portion of the rotating base. According to the ceiling fan, the height adjusting mechanism is arranged so that the height of the fan blades can be adjusted conveniently, the angle adjusting mechanism is arranged so that the inclination angle of the fan blades can be adjusted after the ceiling fan is installed, the driving motor for driving the fan blades to rotate can provide adjusting power for the fan blades, and the production cost is reduced.

The invention belongs to the technical field of industrial fans, and particularly relates to an efficient refrigeration industrial fan which comprises an air cabinet, an air inlet pipe is arranged on the air cabinet, a filter screen is arranged on the air inlet pipe, a water storage box is arranged at the top end of the inner wall of the air inlet pipe, an atomizing nozzle is arranged at the bottom end of the water storage box, and a water receiving box is fixedly mounted at the bottom end of the inner wall of the air inlet pipe. A water inlet is formed in the top end of the water receiving box, a water circulation assembly is arranged on the air inlet pipe and used for conveying water in the water receiving box into the water storage box, a rotating rod is rotationally installed in the air inlet pipe, water absorption sponges are fixedly installed on the two sides of the rotating rod, and a tensioning assembly is arranged in the air inlet pipe and used for unfolding the water absorption sponges. Through cooperative use of the structure, water vapor entering the air cabinet is effectively reduced, and the service life of the air cabinet is guaranteed.

The invention provides an industrial fan outer rotor motor magnetic steel bonding and curing device and method.The industrial fan outer rotor motor magnetic steel bonding and curing device comprises a supporting cabinet, a clamping assembly and a bonding assembly, and the clamping assembly is arranged on the supporting cabinet and used for clamping an outer rotor shell; the pasting assembly comprises a supporting frame, a lifting driving source, a supporting disc, a telescopic rod and a material taking head. The supporting frame is connected with the supporting cabinet, the lifting driving source is connected with the supporting frame, the supporting disc is connected with the lifting driving source, and the lifting driving source drives the supporting disc to stretch into an outer rotor shell; the telescopic rod is connected with the supporting disc and the material taking head, and the material taking head is used for adsorbing magnetic steel; the telescopic direction of the telescopic rod is parallel to the radial disc of the outer rotor shell, and the telescopic rod enables the magnetic steel to abut against the inner wall of the outer rotor shell. According to the invention, the situation that glue is scraped by the magnetic steel when the magnetic steel slides into the inner wall of the outer rotor shell can be improved.

The invention provides a high-adaptability industrial fan, and relates to the technical field of fans, the high-adaptability industrial fan comprises a base, a buffer mechanism, a supporting table and a fan set, and a rotating mechanism comprises a rotating part rotationally arranged at the top of the base and a driving part arranged between the buffer mechanism and the rotating part; two symmetrical moving mechanisms are arranged on each of the two sides of the base in the length direction of the base, two supporting mechanisms are arranged on each of the two sides of the base in the width direction of the base, and a power component is further arranged in the base and can drive the supporting mechanisms to slide out of the base to support the fan unit while driving the moving mechanisms to turn upwards to be separated from the ground. While the industrial fan which vibrates during working is buffered and damped, the fan can be driven to rotate intermittently, uniform ventilation in different directions in a room is facilitated so as to improve the equipment adaptability, the fan stability can be improved, and danger caused by sliding displacement of the fan due to continuous vibration is prevented.

The invention discloses a multi-stage purification dust remover, and aims to provide an efficient and automatic air purification scheme. The dust remover mainly comprises a rack, an Arduino single chip microcomputer, an infrared sensor, a wireless communication module, a motor, a purification chamber, a pre-filtering net, a secondary filtering net, a precise filtering net, a multi-stage filtering net frame, a rotary compression device, an airflow adjusting device, a dust collecting body, a dust collecting pipe, an air inlet connecting pipe, an industrial fan, an upper box body, a middle box body, a crawling ladder, a guardrail, a fan transmission belt and the like. According to the dust remover, the industrial fan is driven by the motor to generate enough suction force, so that air enters the airflow adjusting device, particulate matters with different sizes are gradually removed through the multi-stage filtering system, and finally clean air is output. In addition, through an integrated control system and a remote monitoring technology, automatic management and maintenance of the equipment are realized, and user experience is improved.

The utility model provides a fan blade of an industrial fan, and belongs to the technical field of machinery. The problems that the structural strength of fan blades of an existing industrial fan is not high, and the service life is affected are solved. The fan blade of the industrial fan comprises an upper fan blade part and a lower fan blade part, a cavity is formed between the upper fan blade part and the lower fan blade part, a supporting part is arranged in the cavity, the lower end of the supporting part is connected with the lower fan blade part, the upper end of the supporting part abuts against the inner side wall of the lower fan blade part, and the upper fan blade part, the lower fan blade part and the supporting part are of a bent integrally-formed structure. The fan blade of the industrial fan has the advantages of being high in structural strength and long in service life.

The utility model discloses an industrial fan rotating speed control device which comprises a substrate, a stator winding, a rotor, a motor shell and a heat dissipation plate, one side of the substrate is fixedly connected with a fixed cover, one side of the fixed cover is fixedly connected with a connecting frame, one side of the connecting frame is in threaded connection with a sealing cover, and a variable resistor is fixedly connected in the connecting frame. One side of the fixed cover is in threaded connection with a fixed ring, one side in the fixed ring is fixedly connected with a baffle plate, heat dissipation holes are uniformly formed in the baffle plate, the heat dissipation holes correspond to the heat dissipation plate, the baffle plate is rotationally connected with a connecting ring, one side of the connecting ring is sleeved with a rotor, and the other side of the connecting ring is provided with a heat dissipation fan; according to the industrial fan, the heat dissipation fan is installed on one side of the base plate and matched with the heat dissipation holes, so that airflow passes through the multiple layers of baffle rings, the effect of rapid heat dissipation can be achieved when the rotating speed of the industrial fan is controlled, and meanwhile the dustproof effect can be achieved through the arrangement of the first clamping plate and the second clamping plate.

The invention relates to the technical field of industrial fans, in particular to an industrial fan with a height adjusting function, and aims to solve the problems that in the prior art, the height is not adjustable, and overheating is prone to occurring. Comprising a lifting base plate, mounting seats are symmetrically arranged at the two ends of the lifting base plate, the mounting seats are fixedly mounted on the top of a plant through bolts, a second mounting plate is arranged below the lifting base plate, a first mounting plate is arranged above the second mounting plate, and the two ends of the first mounting plate are connected with the second mounting plate through connecting frames; and the first mounting plate is connected with the lifting base plate through a lifting component. The fan blade is designed according to existing requirements, the height of the fan blade can be reduced in time according to the requirements, later maintenance operation is facilitated, a safety insurance component can be triggered while the fan blade is reduced, mechanical locking is completed, the blade is prevented from rotating, safety is guaranteed, in addition, the steering angle of the blade can be adjusted in time, and the service life of the fan blade is prolonged. The blowing effect is changed in time, and the emergency requirement is met.

The utility model relates to the technical field of mine tunnel ventilation, and discloses ventilation, dust removal and purification equipment for a coal mine driving working face, which comprises a ventilation pipe. According to the ventilation, dust removal and purification equipment for the coal mine driving face, through the arrangement of the air suction assembly, the spraying assembly and the circulating assembly, during use, an industrial fan is started, the industrial fan rotates to suck air in a mine hole, and when the air enters a ventilation pipe, a first water pump is started; a first water pump conveys liquid in a water storage tank into a spraying pipe, an atomizing nozzle sprays out water in the spraying pipe, dust falling treatment is conducted on sucked air, the water and dust in the air are mixed and fall into a liquid storage tank, a filter screen filters the mixed liquid, a second water pump is started, and the water in the water storage tank is sprayed out. A second water pump pumps out the filtered water, and the filtered water is conveyed into a water storage tank through a water outlet pipe, so that the used water can be recycled, and certain water resources are saved.

The utility model relates to the field of refractory materials, and discloses a practical long-life middle furnace cover of an electric arc furnace, which comprises a middle furnace cover, the outer wall of the middle furnace cover is fixedly connected with a hollow shell, the outer wall of the hollow shell is fixedly connected with a heat dissipation shell, the heat dissipation shell is internally provided with a filter screen, the heat dissipation shell is internally fixedly connected with a fixed plate, and the fixed plate is fixedly connected with the outer wall of the hollow shell. A motor is fixedly connected to the top of the fixing plate, a rotating rod is fixedly connected to the output end of the motor, a sliding block is rotatably connected to one side of the outer wall of the rotating rod, a connecting rod is slidably connected to the interior of the sliding block, a fixing frame is fixedly connected to the bottom of the connecting rod, and an industrial fan is fixedly connected to the interior of the fixing frame. The middle furnace cover is cooled, heat on the surface of the furnace cover is taken away in time, the temperature gradient is reduced, thermal stress is reduced, the problem that the middle furnace cover is prone to being damaged due to the fact that the temperature is too high for a long time is solved, and the service life of the device is prolonged.

The utility model relates to the technical field of power electronics, and discloses a variable-frequency and energy-saving industrial fan speed regulating device which comprises a heat dissipation mechanism, the heat dissipation mechanism comprises a second motor, the output end of the second motor is fixedly connected with a first heat dissipation fan, and the outer portion of the first heat dissipation fan is fixedly connected with heat dissipation fins. A second cooling fan is fixedly connected to the inner sides of the cooling fins, and the cooling fins are fixedly connected to the outer portion of the second cooling fan, namely the side, away from the first cooling fan, of the second cooling fan. According to the utility model, after the motor II is started, the cooling fan I and the cooling fan II are driven to operate, so that the air flow rate around the cooling fins is greatly increased, the heat dissipation is accelerated, the temperature of the speed regulation device is effectively reduced, the stable operation of the speed regulation device is ensured, the normal operation of the speed regulation device is ensured, and the plurality of cooling fans work simultaneously and synergistically, so that the cooling efficiency is greatly improved; the service life of the speed regulating device is prolonged and the equipment maintenance cost is reduced.

The present application belongs to the field of industrial fan, and relates to abnormality monitoring technology, which is used to solve the problem that the existing high static pressure axial flow fan and intelligent monitoring system cannot make decision analysis on abnormal treatment measures of the fan according to abnormal monitoring data, and specifically is a high static pressure axial flow fan and intelligent monitoring system, which comprises an intelligent monitoring platform, wherein the intelligent monitoring platform is communicatively connected with an operation monitoring module, a maintenance analysis module, an abnormality analysis module and a storage module; the operation monitoring module is used for monitoring and analyzing the operation state of the high static pressure axial flow fan; the high static pressure axial flow fan is marked as a monitoring object, a monitoring period is generated, and the monitoring period is divided into a plurality of monitoring time periods; the present application can monitor and analyze the operation state of the high static pressure axial flow fan, monitor the operation abnormality degree of the fan in the monitoring time period through the operation coefficient, mark the monitoring time period, and provide data support for maintenance necessity analysis and abnormality analysis.

1. The name of the design product: industrial fan (12025). 2. The use of the design product: used in new energy industry, industrial industry, server and frequency converter to adjust air flow. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The present invention discloses a variable cross-section turbulent flow fan blade for large-scale industry. The blade includes a hollow main body having an internal cavity, and further includes a solid turbulent flow wing connected to the rear side edge of the blade and extending along the root-tail direction of the rear side edge. At the rear side edge of the turbulent flow wing, there are turbulene teeth continuously distributed periodically along the root-tail direction. Each turbulene tooth at least includes a turbulent flow side extending along the root-tail direction and gradually narrowing towards the main body side. The blade of the present invention takes into account the large wind force gap between the root and the tail of the industrial fan and the discomfort problem of continuous wind blowing on people. It uses turbulent flow to simulate natural wind and balance the wind force gap inside and outside the center, truly solving the application pain points of industrial large fans, improving the large environment of the factory, and enhancing the comfort of the staff under the fan.

1. The name of the product of this design: fan blade. 2. Purpose of the product of this design: components for industrial fans. 3. The design key point of this appearance design product lies in the shape of the product. 4. The picture or photo that best illustrates the design points: Stereoscopic diagram 1.

The invention belongs to the technical field of industrial fans, and discloses an automatic cleaning industrial fan which comprises a support, a transmission motor and a shell are fixedly connected to the support, the output end of the transmission motor penetrates into the shell and is fixedly connected with an impeller, and a mounting cylinder is fixedly mounted on the shell through bolts; the automatic cleaning piece is arranged in the shell; the automatic cleaning part comprises a double-shaft motor, the double-shaft motor is fixedly connected to the shell, and the top end of an output shaft of the double-shaft motor is fixedly connected with a worm. The double-shaft motor and the worm drive the worm gear, the toothed bar and the first reciprocating lead screw to rotate, so that the first reciprocating lead screw drives the flushing part to comprehensively flush the impeller, and it is ensured that the impeller is clean and free of dead corners; and meanwhile, the toothed bar drives the arc-shaped plate and the scraping plate to rotate through the toothed ring and the spring reset piece, the scraping plate scrapes off accumulated dust in the shell in a self-adaptive mode, the whole cleaning process does not need manual intervention, and the cleaning process can be automatically completed when the draught fan is not used.

The invention relates to an energy-saving industrial fan motor assembly which comprises a shaft rod, a rotor seat body and a stator seat body, the rotor seat body and the stator seat body are both installed on the shaft rod, the stator seat body comprises a stator seat ring body, stator seat supporting arms and a stator inner hole seat, and one ends of the stator seat supporting arms are distributed along the inner wall of the stator seat ring body. One end of the rotor seat supporting arm is distributed along the inner wall of the stator seat ring body, the other end of the rotor seat supporting arm is integrated on the outer end side of the rotor inner hole seat and is divided into a plurality of lower hollow channels, the rotor seat ring body is of an inner hollow structure, one end of the rotor seat supporting arm is distributed along the inner wall of the stator seat ring body, and the other end of the rotor seat supporting arm is integrated on the outer end side of the rotor inner hole seat and is divided into a plurality of upper hollow channels. A lamp lighting assembly is installed below the stator base body, and a lower air channel is formed between the lamp lighting assembly and the stator base ring body. The scheme realizes a directional convection heat dissipation path, accelerates the discharge of heat in the motor, and reduces the influence of temperature rise on the efficiency.

The utility model discloses an industrial large fan anti-falling fixing device which comprises a mounting plate, one side of the mounting plate is fixedly connected with a connecting frame, one side of the upper end of the connecting frame is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a first rotating rod, and the first rotating rod is fixedly connected with a first rotating frame. The upper side and the lower side of the first rotating frame are fixedly connected with arc-shaped blocks, an arc-shaped groove is formed in the first rotating frame, the portions, located on the two sides of the arc-shaped groove, of the first rotating frame are fixedly connected with limiting plates, and one limiting plate is fixedly connected with a second motor. And then a second motor is matched with a second rotating rod to enable a second rotating frame to vertically swing, so that the large industrial fan achieves three-dimensional rotation, an arc-shaped block is connected with an arc-shaped protrusion, a pulley is matched with a pressing plate to provide support for the second rotating frame, and therefore the stability of the large industrial fan during rotation is improved, and the advantage of falling prevention is achieved.

The utility model relates to the technical field of industrial fan accessory equipment, in particular to an industrial fan rotating speed control device which comprises a substrate and a protective shell, a resistance adjusting assembly is arranged on the substrate, an adjusting knob used in cooperation with the resistance adjusting assembly is arranged on the protective shell, and the resistance of the resistance adjusting assembly is changed through the adjusting knob. The fan rotating speed adjusting device has the advantage of multi-gear adjustment, meanwhile, the position of the adjusting rod is limited through the guide seat, so that the fan rotating speed adjusting device is more stable during rotation, adapts to frequent rotation and does not deflect or misplace, and the conductive seat is installed at the end of the adjusting rod, so that the rotating speed of the fan is adjusted. The conductive blocks connected with the conductive seat are installed on the two sides of the resistance coil, so that direct contact between the conductive seat and the resistance coil is replaced, abrasion of the conductive seat in the using process can be relieved, and the service life of equipment is prolonged.

1. The name of the product of this design: Industrial fan (BGF500 / BGF1000). 2. Purpose of the product of this design: industrial fan for regulating temperature. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the key points of the design: 3D drawing of Design 1. 5. Designate Design 1 as the base design.

The invention relates to a wind gathering type industrial fan which comprises a shell, an axial flow fan rotationally arranged in the shell and a driving part for driving the axial flow fan to rotate, the shell comprises a straight barrel shell and a protective net cover, and the protective net cover is arranged on the air outlet side of the straight barrel shell; the fan further comprises a wind gathering cover arranged on the straight barrel shell, a through hole is formed in the middle of the wind gathering cover, the circumferential outer wall of the wind gathering cover is attached to the circumferential outer wall of the wind outlet side of the straight barrel shell, and the distance between the axis of an inner ring of the wind gathering cover and the axial flow fan is larger than that between an outer ring of the wind gathering cover and the axial flow fan. According to the device, wind is gathered, wind power is concentrated, air can be conveniently blown to a designated position, especially some specific devices needing heat dissipation in a plant, heat dissipation is more accurate after wind power is concentrated, the heat dissipation effect of the devices is good, and wind power waste is not likely to be caused. The distance between the axis of the inner ring of the wind gathering cover and the axial fan is larger than that between the outer ring of the wind gathering cover and the axial fan, so that diversion is formed, and wind power loss is reduced.

The utility model relates to the technical field of industrial fans, in particular to a large industrial fan which comprises a support, a large fan body and a protective assembly, and the protective assembly comprises a protective cover, a front protective frame, a back protective frame, a connecting column and an arc-shaped plate. The large fan body is shielded through the protective cover, the front face and the back face of the large fan body are protected through cooperation of the front face protective frame and the back face protective frame, particulate matter is prevented from entering the large fan body, the arc-shaped plate is arranged on the surface of the protective cover, and the top of the large fan body is protected; according to the special safety cover device for the industrial large fan, particulate matters are prevented from falling onto the large fan body from the top of the safety cover to influence the normal operation of the large fan body, so that the problems that in the rotating process of the large fan body, particulate matters are easy to splash, enter the fan safety cover and collide with the large fan body in a complicated production site, and the production efficiency is increased are solved. And the large fan body is easy to damage.

The utility model relates to an industrial fan which comprises a frame, a motor, a first belt wheel and a fan blade rotating mechanism, the frame is provided with an installation through hole, the installation through hole penetrates through the frame, and the fan blade rotating mechanism is installed in the installation through hole; the motor is provided with a rotating shaft, and the rotating shaft and the first belt wheel are fixedly connected together in a shaft hole connection mode. The fan blade rotating mechanism comprises a second belt wheel and a preset number of fan blades, and the first belt wheel and the second belt wheel are connected together through a transmission belt, so that the motor drives the second belt wheel to rotate, and the fan blades are driven to rotate.

An industrial structure for wind energy collection includes an industrial facility requiring ventilation and a ventilation opening. An industrial fan associated with the vent discharges exhaust gas forming an exhaust flow zone opposite the vent. The exhaust flow zone is defined by first and second boundaries extending from the industrial structure at first and second sides of the vent. At least one wind turbine is located outside the vent, including a turbine blade portion and a generator. The at least one wind turbine is positioned relative to the vent such that, during each rotational cycle, the blade portion lies partially within the exhaust flow zone across the first boundary and partially outside the exhaust flow zone.

The utility model provides a special frequency converter for an industrial fan, which comprises a heat dissipation frame, a fixing assembly is arranged on the surface of the heat dissipation frame, a flat copper pipe is arranged between a pressing seat I and a pressing seat II, and the pressing seat I and the pressing seat II are respectively pressed at two ends of a frequency converter body; according to the utility model, the heat dissipation frame is arranged on the back surface of the frequency converter, the heat dissipation frame is provided with a plurality of heat conduction fins, when the frequency converter is used, heat generated by the back surface of the frequency converter can be dissipated through the heat conduction fins, the outer side of the frequency converter is also provided with the pressing seat I, the pressing seat II and the flat copper pipe, and the frequency converter can be pressed and limited through the pressing seat I and the pressing seat II; meanwhile, the flat copper pipe is arranged around the outer ring of the frequency converter, the frequency converter can be protected, cooling liquid can be introduced into the first pressing base, the second pressing base and the flat copper pipe, rapid water cooling of the frequency converter can be achieved, heat generated around when the frequency converter works is taken away, and the heat dissipation effect is further improved.

The utility model relates to the technical field of automobile wind resistance testing, in particular to a simulated automobile wind resistance testing device which comprises a base, a sliding rail is arranged in the center of the top of the base through a reserved groove, a testing table is arranged at the top of the sliding rail, and a reference ruler is fixed to the side, corresponding to the sliding rail and the testing table, of the top of the base through bolts. An L-shaped bearing frame is arranged on one side of the base, a heavy-load electric cylinder is mounted at the top of the L-shaped bearing frame through bolts, a test cover covers the top of the base, and an industrial fan and a ventilation net cover are mounted in the centers of the surfaces of the two sides of the test cover through reserved openings and bolts respectively; the heavy-load electric cylinder drives the test cover to descend to cover the top of the base, so that an automobile stopping at the top of the test board is located in a simulated wind tunnel type cover body environment, the industrial fan is started to blow air to the automobile for wind resistance test, and airflow in the test cover is conveniently discharged through the ventilation mesh cover.

The present invention relates to the technical field of welding, and particularly relates to a welding fixture for an industrial fan impeller, which comprises a base and a working plate. The top of the base is fixedly connected with the working plate, and the working plate is a circular plate with a central opening. The welding fixture further comprises: a rotating ring rotatably installed on the outer edge of the top surface of the working plate, and a plurality of electric slide rails I are circumferentially and spacedly fixedly arranged on the top surface of the rotating ring; an inner ring plate rotatably assembled at the central opening of the rotating ring, and a plurality of electric slide rails II which are equal in number to the electric slide rails I are circumferentially and spacedly fixedly arranged on the top surface of the inner ring plate; and positioning and clamping members arranged on each of the electric slide rails I and the electric slide rails II. Through the mutual cooperation of the positioning and clamping members on the electric slide rails I and the electric slide rails II, the present invention can accurately position and clamp each blade, and perform fine adjustment through a cylinder and a bidirectional lead screw driven by a first motor, thereby effectively improving the accuracy of welding the blades on the chassis.